e12f1bb8363583ae4f2d37cb99d3d003a490d748cdef784a244654c34462bbba

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16-03-2024 04:50

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General

Target

2024-03-16_e58124774d878da59a1ef42449affd26_cryptolocker.exe
Size

102KB
MD5

e58124774d878da59a1ef42449affd26
SHA1

2a1d402168cf5ff286fef8d419c827c58b7b7b07
SHA256

e12f1bb8363583ae4f2d37cb99d3d003a490d748cdef784a244654c34462bbba
SHA512

40b39ec25e7adbf9914f1af25411193c0c15442124434518f79da23266ff32c44ed2a0e5f06608741dad84a1358796d54112a368d1bcf441a271da074d8ed181
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k2mwVea:xj+VGMOtEvwDpjubwQEIiVmkxv/Ca

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/640-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224c-11.dat	CryptoLocker_rule2
behavioral1/memory/640-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1720-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/640-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001224c-11.dat	CryptoLocker_set1
behavioral1/memory/640-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1720-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/640-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c00000001224c-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/640-14-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1720-25-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
1720	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
640	2024-03-16_e58124774d878da59a1ef42449affd26_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 640 wrote to memory of 1720	640	2024-03-16_e58124774d878da59a1ef42449affd26_cryptolocker.exe	28
PID 640 wrote to memory of 1720	640	2024-03-16_e58124774d878da59a1ef42449affd26_cryptolocker.exe	28
PID 640 wrote to memory of 1720	640	2024-03-16_e58124774d878da59a1ef42449affd26_cryptolocker.exe	28
PID 640 wrote to memory of 1720	640	2024-03-16_e58124774d878da59a1ef42449affd26_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_e58124774d878da59a1ef42449affd26_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_e58124774d878da59a1ef42449affd26_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:640
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
102KB

MD5
2add7e833be9f0f62492d61e08b4a7db

SHA1
3ab7518cff0a622352bc8a8a483a261acdf342ce

SHA256
47c0494fc6a8075adb2e8394fef3aa5babaf61a5780b8de4d1ae6ce57cb4d62b

SHA512
37771879d484a7228a8bab9348eec59c2e34f3d9eba12dbc6044e9a557aafe9b55014ef2cdf03695761060d34d160d8ef61049113dbe621b8e2aaa288bd3c04f

Download Submit
memory/640-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/640-1-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/640-3-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/640-2-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/640-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1720-17-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1720-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1720-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download